Toe-centering device.



L. M. BROWN.

TOE CENTERING DEVICE.

APPLICATION men APR-3,1911.

Patented May 15, 1917.

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LOUIS M. BROWN, OF BEVERLY, MASSACHUSETTS, ASSIGNOR T UNITED SHOEMACHIN- ERY COMPANY, OF EATER/SON, NEW JERSEY, A CORPORATION OF NEWJERSEY.

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Specification of Letters Patent.

Patented May 15, 1917.

Application fi1ed'Apri13, 1911. Serial No. 618,627.

which the following description, in connection with the accompanyingdrawings, 1s a specification, like reference characters on the drawingsindicating like parts in the several figures.

This invention relates to shoemakmg machinery and particularly tolasting machincry of the bed lasting type in which end embracing wipersare employed for closing a about the end of the shoe and wiping theupper inwardly simultaneously and equally These formed edges and mountedfor movement about a center formed 1n their edges and so located thatlike closing movements 1mparted to the right'and left plates of a pairof wipers having a particular edge forma tion will close them equaldlstances over the margin of the shoe bottom. Th s locatlon obviouslydiffers for shoes ofdifferent shapes or styles of last bottom contourand the wipers for each of these shapes must have their acting edgesground to shape with reference to this center location on the lastbottom or sole pattern. In practice a sole pattern which is of the shapeof the last bottom is marked by an expert designer at what his eyediscovers to be the correct location for the center and then the wiperplates, which are manufactured in blanks, are ground, one to the shapeof the'pattern edge at the right of the center mark and the other to theshape at the left of the center mark.

An object of this invention is to provide apparatus for finding, andpreferably marking, the center point with mechanical accu- I haveascertained that for such machines as the commercial No. 5 lastingmachines in which the shoe is located with the median dine of each endportion in the median line or the line of advance of the cooperatinglasting mechanism the required center Incapattern end is placed in andagainst this fork v and the open feelers are closed and turn the soletoward one side or the other to bring the median line of its end portioninto the 1ncdian line of the apparatus. The point on its perimeter whichis then intersected by the median line of the apparatus is themechanically correct pivot point for wipers that are to be made forlasting that end of a shoe on a last of that style. The heel end of aleft pattern having its toe end so positioned in the apparatus will beinclined to one side and the heel portion of a right pattern will beoppositely inclined. To make use of this information as to the centerlocation, means is preferably provided for marking the sole or pattern.For this purpose a stamp is pro vided over the point of the end fork andcan be worked to make a pressure mark or an incision on the work. Thefeelers are rolls projecting upwardly through transverse slots in thebase and connected by a toggle to an operating slide that is confinedagainst any loose movement laterally.

For machines in which the end of the toe and the end of the heel areeach positioned symmetricallywith relation to the median line of themachine and the toe and heel lasting mechanisms advance along that lineas in the commercial Ideal and Chase lasters. the sole patterns must bedifferently marked. The need is, for such patterns, to find theintersection with the periphery of the pattern at the toe and the heelof the median line of the patternas a whole. For this purpose theapparatus comprisesa heel end fork to cooperate with the toe end fork,said forks being arranged for relative movement for different lengths ofsoles, and each fork is equipped with a stamp to mark the sole atapparatus.

scription of the apparatus in which it is embodied and will then bepointed out in the claims.

Figure 10f the drawings is a perspective view of a machine embodying myinvenn;

Fig. 2 is a plan showing different positions for the work andillustrating the feeler operating means;

Fig. 3 is a perspective view of the marking stamp;

Fig. l. shows a sole or sole pattern marked for 1T0. 5 wipers.

The base or body 2 is shown as provided with short cushioned legs torest on a table and is chambered out to provide space and guideways forthe operating means. A table or cover 4 has a smooth top face upon whichthe toe fork 5 is mounted at one end to slide between gibs', said forkbeing slotted at 6 to receive an upstanding screw and binding nut tosecure the fork in adjusted position when tightened or to allow endwisemovement. of the fork when the nut is loosened.

The table a has slots 10 through which rise pins bearing rolls 12 thatconstitute the feelers. These pins and rolls are mounted on the frontends of levers 14: which are each fulcrumed at its rear end and whichare connected by a toggle 15. The toggle members are fastened to anoperating slide 16 that is guided in a way in the base in which it sofits that the feelers 12 are actuated without loose movement andsymmetrically toward and from the median line of the apparatusin whichthe angle of the toe fork is also located.

A stamp is erected over the angle of the toe fork and comprises a guidetube 20 in which a plunger 22 is upheld by a spring 23 and guided by akey in a slot in the tube. The spring rests downwardly on a cross pin 24that has its ends in; the tube and extends through a slot in theplunger. The plunger has a blunt blade end 25 and can be driven down bya blow of the hand on its head to mark asole or pattern as in Fig. 4.

The sole or pattern is placed on the table with its toe'or heel end thatis to be'marked for the No. 5 wiper'sin the toe fork 5 as shown in Fig.2, the feelers being spread or open. The feelers are then closed by theslide 16' and they position the sole laterally until the end portionbeing operated upon is symmetrically located with relation to theThisbrings the median line of said end portion into the median line ofthe apparatus; The stamp is then actuated by a blow of thehand and thesole withdrawn, reversed, andtheother end is similarly positinned byactuation of the feelers and then marked.

The heel fork 26 to be used for marking the heels of patterns for Idealand Chase lasters is attached to a foot 28 by which it can slide alongthe median line of the table 1. This heel fork has a stamp like thatwhich is mounted on the ,toe fork.

A sole or sole pattern to be marked for the last mentioned machines is"centered by placing the toe end in thetoe fork .5 and then advancingthe heel fork against the heel end of the sole. The stamps will then beactuated and will mark the ends of the median line of the sole orpattern as a whole.

Obviously any functional equivalent for the toe or heel fork may beemployed.

The described apparatus is referred to as a toe centering apparatus forthe purpose of designation and obviously no limitation is to be impliedby so doing and likewise the work is designated as a sole pattern withthe intention of covering either a sole or a pattern shaped like'thesole face of a last.

Having explained the nature of this in-' vention and described apreferred embodiment thereof and how it may be used I. claim as newanddesire to secure by Letters Patent of the United State's:

1'. Apparatus for finding the centers of the endsof soles having, incombination, a toe receiving fork, a table having the slots 10, thefeelers 12 projecting through said slotsand above the surface of thetable, the carrier levers- 14: for the feelers, the toggle 15 and theactuator 16 arranged to slide lengthwise of the table to actuate thetoggle 15 to produce symmetricalmovement of the feelers together towardand from the middle of the table. 7

2. Apparatusfor finding the center of the toe end of a sole having, incombination a toe receiving'fork, feelers, means whereby they are movedtogether symmetrically with relation to the center of the fork toposition laterally a sole placed'in the toe fork, anda stamp mounted onthe toe fork in position to mark the center of the toe when the sole hasbeen so positioned.

3 Apparatus for finding the center of the end of a sole, having, incombination, a toe receiving fork, feelers, means whereby they are movedtogether symmetrically with relation to the center of the fork toposition laterally a sole placed in the toe fork, and a marker arrangedwith relation to the fork to place a mark on the sole at the'center ofthe periphery of the toe.

4:. Apparatus for finding the center of the end of a sole having incombination, a toe receiving fork, feelers, means whereby they are movedtogether symmetrically with retherein against turning movement, and amarking blade on the lower end of the plunger to make a, line extendingfrom the center of the tip of the sole rearwardly in the median line ofthe sole.

5. An apparatus for finding the center of the end of a sole, having, incombination, a table for supporting a sole, a toe receiving fork, a heelcentering fork, one of said forks being adjustable relatively to theother lengthwise of the table to center a sole, and a stamp associatedWith the too fork forv marking the edge center of the toe of the sole. Y

6. An apparatus for finding the centers of the ends of soles, having, incombination, a sole support, a toe receiving fork, a heel centeringfork, said forks being adjustable lengthwise of the support in adefinite relation to one another to center a sole, and stamps associatedWith the toe and heel forks to mark the centers of the two ends of thesole.

7. Apparatus for finding the centers of the ends of soles having, incombination, a toe receiving fork, a heel centering fork, a table uponWhich the forks are mounted and which is adapted to support the sole,said table having a guideway in which movement of one of the forks isdirected toward and from the other in a prescribed direction and amarker mounted on each of said forks for marking the center of each endof the sole.

8. Apparatus for locating, and marking, the center of the tip of sole;said apparatus oomprislng a tip receiving fork; a marker associated withsaid fork; and means, mov

able relatively to said fork, for engagement with, and location of, saidsole, in position for operation by said marker upon the center of thetip of said sole, Whether said sole he a right or left, and irrespectiveof axial variations.

9. An apparatus for ascertaining and indicating the point ofintersection of the longitudinal median line of an end portion of a soleWith the perimeter of the sole comprising centering means engaging theend and both sides of the sole for ascertaining the point and markingmeans for indicating the point.

10. Apparatus of the class described, having, in combination, forksconstructed to center the ends of a sole for ascertaining the point ofintersection of the longitudinal median line of the sole With theperimeter of the sole at its tWo ends, and means mounted on the forksfor marking the points of intersection upon the ends of the sole.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

LOUIS M. BROWN.

Witnesses:

CHESTER E. Roenns, LAURA M. Goonnrocn.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

' Washington, D. G.

